Home / 109,432.72-150,991.44-66,411.25

Finding the Fourth Proportional to 109,432.72, 150,991.44 and 66,411.25

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Solution

The fourth proportional to 109,432.72, 150,991.44 and 66,411.25 is: 91,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,432.72 : 150,991.44 = 66,411.25 : x
  2. Step 2: Convert to fraction form
    109,432.72/150,991.44 = 66,411.25/x
  3. Step 3: Cross multiply
    109,432.72x = 150,991.44 × 66,411.25
  4. Step 4: Simplify right side
    109,432.72x = 10,027,530,707.48
  5. Step 5: Solve for x
    x = 10,027,530,707.48/109,432.72
  6. Step 6: Final answer
    x = 91,631.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.